129630926 has 4 divisors (see below), whose sum is σ = 194446392. Its totient is φ = 64815462.

The previous prime is 129630913. The next prime is 129630929. The reversal of 129630926 is 629036921.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 129630926.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129630929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32407730 + ... + 32407733.

It is an arithmetic number, because the mean of its divisors is an integer number (48611598).

Almost surely, 2^129630926 is an apocalyptic number.

129630926 is a deficient number, since it is larger than the sum of its proper divisors (64815466).

129630926 is an equidigital number, since it uses as much as digits as its factorization.

129630926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64815465.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 129630926 is about 11385.5577816811. The cubic root of 129630926 is about 506.0998490639.

The spelling of 129630926 in words is "one hundred twenty-nine million, six hundred thirty thousand, nine hundred twenty-six".